Found an interresting study from the University of Pardubice; Czheck Republic about the GAU-8/A effectivness and the damage from DU. There have been widely debates wether or not the GAU-8/A is effective enough to destroy MBT´s, or if it´s just a myth.
As we all know, the GAU-8/A in DCS are not a reliable source to speculate in the true effectivness of the gun in real combat. What I guess we all can agree about is that it is a formidable weapon against many targets - but is it really as effective against tanks (modern vs old) as its reputation says it is?